Nortel Networks 553-3001-211 manual Operation, Host interface bus

Overview Page 61 of 894

Operation

This section describes how trunk cards fit into the CS 1000S, CS 1000M, and Meridian 1 architecture, the buses that carry signals to and from the trunk cards, and how they connect to terminal equipment. See Table 7 for IPE parameters.

Host interface bus

Cards based on the IPE bus have a built-in microcontroller. The IPE microcontroller is used for the following:

•to perform local diagnostics (self-test)

•to configure the card according to instructions issued by the system processor

•to report back to the system processor information such as card identification (type, vintage, and serial number), firmware version, and programmed configuration status.

Table 7

Differences between IPE parameters

Parameter	IPE
Card Dimensions	31.75 x 25.4 x 2.2 cm. (12.5 x10.0 x 0.875 in.)
Network Interface	DS-30X Loops
Communication Interface	card LAN Link
Microcontroller	8031
Peripheral Interface card	NT8D01 Controller card
Network Interface card	NT8D04 Superloop Network card
Modules	NT8D37 IPE module

Intelligent Peripheral Equipment

IPE trunk cards all have a similar architecture. Figure 11 on page 62 shows a typical IPE trunk card architecture. The various trunk cards differ only in the number and types of trunk interface units.

Circuit Card Description and Installation